Evolution of dislocation substructures in metals via high-strain-rate nanoindentation

Y Zhang, BL Hackett, J Dong… - Proceedings of the …, 2023 - National Acad Sciences
Deformation at high strain rates often results in high stresses on many engineering
materials, potentially leading to catastrophic failure without proper design. High-strain-rate …

On the measurement of hardness at high strain rates by nanoindentation impact testing

PS Phani, BL Hackett, CC Walker, WC Oliver… - Journal of the …, 2023 - Elsevier
Recent advances in electronics have enabled nanomechanical measurements with very low
noise, fast time constants and high data acquisition rates. These capabilities open the door …

Inertial effect on dynamic hardness and apparent strain-rate sensitivity of ductile materials

Z Ghasemi, T dos Santos… - Journal of the …, 2023 - Elsevier
Indentation is a simple and one of the oldest small-scale test methods for characterizing the
mechanical response of materials. Recently, there has been a growing interest in dynamic …

[HTML][HTML] Novel nanoindentation strain rate sweep method for continuously investigating the strain rate sensitivity of materials at the nanoscale

H Holz, B Merle - Materials & Design, 2023 - Elsevier
We introduce a new nanoindentation method to continuously measure the hardness while
sweeping through orders of magnitudes of strain rates within a single experiment. While …

Novel nanoindentation strain rate sweep method for investigating the strain rate sensitivity of materials and its hysteresis at the nanoscale

H Holz, B Merle - arXiv preprint arXiv:2308.13403, 2023 - arxiv.org
We introduce a new method to continuously measure the hardness while sweeping through
orders of magnitudes of strain rates within a single experiment. While nanoindentation …

Rapid quantification of dynamic and spall strength of metals across strain rates

SE Prameela, CC Walker, CS DiMarco… - arXiv preprint arXiv …, 2023 - arxiv.org
The response of metals and their microstructures under extreme dynamic conditions can be
markedly different from that under quasistatic conditions. Traditionally, high strain rates and …